215R14 Tire Size in Inches & Millimeters

Tire size “215/0R14” indicates your vehicle’s specifications based on tire width, aspect ratio, height, tire construction, diameter, radial and inches. These tire size numbers represent our tire sizes in both Metric (in millimeters) and Imperial (in inches) units of measurement to help find the correct tire size for your vehicle.

To convert tire size 215R14 to inches, you must know what these numbers represent.

So let us know 215R14 in simple words:

First number “215” indicates the tire’s width in millimeters.
Second number “0” refers to the aspect ratio, which is the height of the tire’s sidewall as a percentage of its width.
Third number “R14” refers to a tire that is designed to fit a 14-inch diameter rim.

Therefore, when converting the tire size 215R14 to inches, it can be concluded that the width of the tire will be approximately 8.5 inches ( 215 mm= 8.5 in), and the sidewall height will be approximately 6.8 inches (0% of 8.5 inches = 6.8 inches).

How to convert 215R14 into Inches (imperial)?

To convert tire size 215R14 to inches (Imperial) –

1. Width conversion: To convert it to inches, you can use a conversion factor of approximately 25.4 millimeters per inch.

  • 215 millimeters/25.4 = approximately 8.5 inches
    So, the width of the tire is approximately 8.5 inches.

2. Aspect Ratio Calculation: To calculate sidewall height in inches, you can use the tire width (from Step 1) and the aspect ratio:

  • Sidewall Height = Width (in inches) * Aspect Ratio / 100
  • Sidewall Height = 8.5 inches * 0/100 = approximately 6.8 inches
    So, the tire sidewall height is approximately 6.8 inches.

3. Rim Diameter: The “R” in the tire size stands for “radial construction” and the last number “14” indicates the rim diameter in inches. In this case, it’s already in inches.
So, the converted tire size “215R14” in inches (imperial) is approximately:

  • Width: 8.5 inches
  • Sidewall Height: 6.8 inches
  • Rim Diameter: 14 inches

How to convert 215R14 into Millimeters (metric)?

To convert the tire size 215R14 into millimeters (metric) –

1. Width Conversion: The first number in the tire size, “215“, represents the tire’s width in millimeters. Since it’s already in millimeters, there’s no need for conversion.

  • Width: 215millimeters

2. Aspect Ratio Calculation: The second number “0” is the aspect ratio, representing the tire’s sidewall height as a percentage of its width. To calculate the sidewall height in millimeters, you can use the tire’s width (from step 1) and the aspect ratio:

  • Sidewall height = Width (in millimeters) * Aspect Ratio / 100
  • Sidewall height = 215 millimeters * 0 / 100 = 172 mm millimeters
    So, the tire’s sidewall height is approximately 172 mm millimeters.

3. Rim Diameter: The “R” in the tire size stands for “radial construction” and the last number, “14” indicates the rim diameter in inches. To convert this to millimeters, you can use the conversion factor of approximately 25.4 millimeters per inch.

  • Rim diameter = 14 inches * 25.4 millimeters per inch = 356 mm millimeters
    So, the rim diameter is approximately 356 mm millimeters.

So, the converted tire size “215R14” in millimeters (metric) is approximately:

  • Width: 215 mm
  • Sidewall Height: 172 mm
  • Rim Diameter: 356 mm

Alternate Tire Size of 215R14 For replacement

Tire Size Overall Diameter Difference
275/50R16 26.9″ (682 mm) -2.6%
215/70R15 26.9″ (683 mm) -2.4%
275/55R15 26.9″ (683 mm) -2.4%
205R14 26.9″ (684 mm) -2.3%
185/75R16 26.9″ (684 mm) -2.3%
155/90R16 27″ (686 mm) -2%
275/60R14 27″ (686 mm) -2%
215/65R16 27″ (686 mm) -2%
235/70R14 27″ (686 mm) -2%
175/80R16 27″ (686 mm) -2%
255/55R16 27″ (686 mm) -2%
255/60R15 27″ (687 mm) -1.9%
235/65R15 27″ (687 mm) -1.9%
305/50R15 27″ (687 mm) -1.9%
235/60R16 27.1″ (688 mm) -1.7%
205/75R15 27.1″ (689 mm) -1.6%
355/40R16 27.2″ (690 mm) -1.4%
315/45R16 27.2″ (690 mm) -1.4%
195/80R15 27.3″ (693 mm) -1%
195R15 27.3″ (693 mm) -1%
225/75R14 27.3″ (694 mm) -0.9%
205/70R16 27.3″ (694 mm) -0.9%
225/70R15 27.4″ (697 mm) -0.4%
225/65R16 27.5″ (698 mm) -0.3%
195/75R16 27.5″ (698 mm) -0.3%
265/60R15 27.5″ (699 mm) -0.1%
245/65R15 27.5″ (699 mm) -0.1%
245/60R16 27.6″ (700 mm) 0%
245/70R14 27.6″ (700 mm) 0%
185R16 27.6″ (702 mm) 0.3%
295/50R16 27.6″ (702 mm) 0.3%
215/75R15 27.7″ (703 mm) 0.4%
295/55R15 27.8″ (705 mm) 0.7%
225/75R14.5 27.8″ (706 mm) 0.9%
325/50R15 27.8″ (707 mm) 1%
215/70R16 27.9″ (708 mm) 1.1%
275/55R16 27.9″ (708 mm) 1.1%
235/70R15 28″ (711 mm) 1.6%
275/60R15 28″ (711 mm) 1.6%
235/65R16 28″ (712 mm) 1.7%
255/60R16 28″ (712 mm) 1.7%
255/65R15 28.1″ (713 mm) 1.9%
205/75R16 28.1″ (714 mm) 2%
205/85R14.5 28.2″ (716 mm) 2.3%
195/80R16 28.3″ (718 mm) 2.6%
225/75R15 28.3″ (719 mm) 2.7%

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